Soviet Union

The Union of Soviet Socialist Republics abbreviated to USSR and SU or shortened to the Soviet Union, was a Marxist–Leninist state on the Eurasian continent that existed between 1922 and 1991. It was governed as a single-party state by the Communist Party with Moscow as its capital. A union of multiple subnational Soviet republics, its government and economy were highly centralized. The Soviet Union had its roots in the Russian Revolution of 1917, which overthrew the Russian Empire. The Bolsheviks, the majority faction of the Social Democratic Labour Party, led by Vladimir Lenin, then led a second revolution which overthrew the provisional government and established the Russian ... more on Wikipedia